20863725

素因数分解:

$3^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{1867}}^1$

素因数の和:2029

約数の個数: 24

約数和(自身を含む): 34744800

約数和(自身を除く): 13881075

約数列:

[1, 3, 5, 15, 25, 75, 149, 447, 745, 1867, 2235, 3725, 5601, 9335, 11175, 28005, 46675, 140025, 278183, 834549, 1390915, 4172745, 6954575, 20863725]

約数ペア:

[(1, 20863725), (3, 6954575), (5, 4172745), (15, 1390915), (25, 834549), (75, 278183), (149, 140025), (447, 46675), (745, 28005), (1867, 11175), (2235, 9335), (3725, 5601)]